动词
中文翻译：堆叠
同义词：
['heap', 'pile', 'stack']
例句：
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1. The boxes were stacked neatly on the shelves.
盒子整齐地堆放在架子上。
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2. She stacked the books in the corner of the room.
她把书堆在房间的角落里。
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3. The workers stacked the crates to make space for more deliveries.
工人们把箱子堆起来，为更多的货物腾出空间。